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Protocol Buffer与iOS的交互

时间:2016-01-07 16:02来源:未知 作者:最模板 点击:
对后台了解不多,但是最近在接触Protobuf,学到不少东西,所以就此分享出来,和广大iOS developers交流下。 首先了解下Protobuf 用专业的话来说 Google Protocol Buffer( 简称 Protobuf) 是 Google 公司

对后台了解不多,但是最近在接触Protobuf,学到不少东西,所以就此分享出来,和广大iOS developers交流下。

首先了解下Protobuf

用专业的话来说

Google Protocol Buffer( 简称 Protobuf) 是 Google 公司内部的混合语言数据标准,是一种轻便高效的结构化数据存储格式,可以用于结构化数据串行化,或者说序列化。它很适合做数据存储或 RPC 数据交换格式。可用于通讯协议、数据存储等领域的语言无关、平台无关、可扩展的序列化结构数据格式。目前提供了 C++、Java、Python 三种语言的 API。

用我的理解就是

因为我们公司后台使用的是Python,使用Protobuf主要是因为以下三点:

数据结构可以自定义,以便各个开发平台的数据转换

消息载体相比XML要轻便灵活,提高解析性能

需要得到自定义的proto文件才能进行反序列化,否则难以解析数据,很好地加强了数据保密性

安装Protobuf编译器

基于Protobuf良好的特性,那么我们可以着手来体验一下

首先在MAC上部署安装环境

用terminal进行部署,

在terminal输入brew -v检查MAC是否装有brew,没有的话就安装brew,输入以下命令

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”

如果这句命令fail,可以直接进brew的官网,copy Homebrew的官网提供的命令

继续部署

brew install automake

为了方便操作对比,将terminal的输出结果也展示出来好做对比

==>Installing dependencies for automake:autoconf

==>Installing automake dependency:autoconf

==>Downloading https://homebrew.bintray.com/bottles/autoconf-2.69.el_capitan.bo

######################################################################## 100.0%

==>Pouring autoconf-2.69.el_capitan.bottle.4.tar.gz

==>Caveats

Emacs Lisp files have been installed to:

/usr/local/share/emacs/site-lisp/autoconf

==>Summary

:beer:  /usr/local/Cellar/autoconf/2.69: 70 files, 3.1M

==>Installingautomake

==>Downloading https://homebrew.bintray.com/bottles/automake-1.15.el_capitan.bo

######################################################################## 100.0%

==>Pouring automake-1.15.el_capitan.bottle.2.tar.gz

:beer:  /usr/local/Cellar/automake/1.15: 130 files, 3.2M

brew install libtool

==>Downloading https://homebrew.bintray.com/bottles/libtool-2.4.6.el_capitan.bo

######################################################################## 100.0%

==>Pouring libtool-2.4.6.el_capitan.bottle.tar.gz

==>Caveats

In order to prevent conflicts with Apple's own libtool we have prepended a "g"

so, you have instead: glibtool and glibtoolize.

==>Summary

:beer:  /usr/local/Cellar/libtool/2.4.6: 69 files, 3.8M

brew install protobuf

==> Downloading https://homebrew.bintray.com/bottles/protobuf-2.6.1.el_capitan.b

######################################################################## 100.0%

==> Pouring protobuf-2.6.1.el_capitan.bottle.3.tar.gz

==> Caveats

Editor support and examples have been installed to:

/usr/local/Cellar/protobuf/2.6.1/share/doc/protobuf

Python modules have been installed and Homebrew's site-packages is not

in your Python sys.path, so you will not be able to import the modules

this formula installed. If you plan to develop with these modules,

please run:

mkdir -p /Users/huhuimin/Library/Python/2.7/lib/python/site-packages

echo 'import site; site.addsitedir("/usr/local/lib/python2.7/site-packages")' >> /Users/huhuimin/Library/Python/2.7/lib/python/site-packages/homebrew.pth

==> Summary

:beer:  /usr/local/Cellar/protobuf/2.6.1: 118 files, 7.1M

安装Protobuf的编译器

继续输入命令

git clone https://github.com/alexeyxo/protobuf-objc.git

以下是terminal输出结果

Cloning into 'protobuf-objc'...

remote: Counting objects: 2788, done.

remote: Total 2788 (delta 0), reused 0 (delta 0), pack-reused 2788

Receiving objects: 100% (2788/2788), 32.92 MiB | 316.00 KiB/s, done.

Resolving deltas: 100% (1761/1761), done.

Checking connectivity... done.

cd ~/protobuf-objc

./autogen.sh

glibtoolize: putting auxiliary files in '.'.

glibtoolize: copying file './ltmain.sh'

glibtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.

glibtoolize: copying file 'm4/libtool.m4'

glibtoolize: copying file 'm4/ltoptions.m4'

glibtoolize: copying file 'm4/ltsugar.m4'

glibtoolize: copying file 'm4/ltversion.m4'

glibtoolize: copying file 'm4/lt~obsolete.m4'

configure.ac:13: installing './compile'

configure.ac:9: installing './config.guess'

configure.ac:9: installing './config.sub'

configure.ac:10: installing './install-sh'

configure.ac:10: installing './missing'

src/compiler/Makefile.am:5: warning: source file 'google/protobuf/objectivec-descriptor.pb.cc' is in a subdirectory,

src/compiler/Makefile.am:5: but option 'subdir-objects' is disabled

automake: warning: possible forward-incompatibility.

automake: At least a source file is in a subdirectory, but the 'subdir-objects'

automake: automake option hasn't been enabled.  For now, the corresponding output

automake: object file(s) will be placed in the top-level directory.  However,

automake: this behaviour will change in future Automake versions: they will

automake: unconditionally cause object files to be placed in the same subdirectory

automake: of the corresponding sources.

automake: You are advised to start using 'subdir-objects' option throughout your

automake: project, to avoid future incompatibilities.

src/compiler/Makefile.am: installing './depcomp'

./configure

checking build system type... x86_64-apple-darwin15.0.0

checking host system type... x86_64-apple-darwin15.0.0

checking target system type... x86_64-apple-darwin15.0.0

checking for a BSD-compatible install... /usr/bin/install -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... ./install-sh -c -d

checking for gawk... no

checking for mawk... no

checking for nawk... no

checking for awk... awk

checking whether make sets $(MAKE)... yes

checking whether make supports nested variables... yes

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking whether gcc understands -c and -o together... yes

checking for style of include used by make... GNU

checking dependency style of gcc... gcc3

checking for g++... g++

checking whether we are using the GNU C++ compiler... yes

checking whether g++ accepts -g... yes

checking dependency style of g++... gcc3

checking C++ compiler flags...... use default: -g -O2 -DNDEBUG

checking how to print strings... printf

checking for a sed that does not truncate output... /usr/bin/sed

checking for grep that handles long lines and -e... /usr/bin/grep

checking for egrep... /usr/bin/grep -E

checking for fgrep... /usr/bin/grep -F

checking for ld used by gcc... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm

checking the name lister (/usr/bin/nm) interface... BSD nm

checking whether ln -s works... yes

checking the maximum length of command line arguments... 196608

checking how to convert x86_64-apple-darwin15.0.0 file names to x86_64-apple-darwin15.0.0 format... func_convert_file_noop

checking how to convert x86_64-apple-darwin15.0.0 file names to toolchain format... func_convert_file_noop

checking for /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld option to reload object files... -r

checking for objdump... no

checking how to recognize dependent libraries... pass_all

checking for dlltool... no

checking how to associate runtime and link libraries... printf %s\n

checking for ar... ar

checking for archiver @FILE support... no

checking for strip... strip

checking for ranlib... ranlib

checking command to parse /usr/bin/nm output from gcc object... ok

checking for sysroot... no

checking for a working dd... /bin/dd

checking how to truncate binary pipes... /bin/dd bs=4096 count=1

checking for mt... no

checking if : is a manifest tool... no

checking for dsymutil... dsymutil

checking for nmedit... nmedit

checking for lipo... lipo

checking for otool... otool

checking for otool64... no

checking for -single_module linker flag... yes

checking for -exported_symbols_list linker flag... yes

checking for -force_load linker flag... yes

checking how to run the C preprocessor... gcc -E

checking for ANSI C header files... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking for dlfcn.h... yes

checking for objdir... .libs

checking if gcc supports -fno-rtti -fno-exceptions... yes

checking for gcc option to produce PIC... -fno-common -DPIC

checking if gcc PIC flag -fno-common -DPIC works... yes

checking if gcc static flag -static works... no

checking if gcc supports -c -o file.o... yes

checking if gcc supports -c -o file.o... (cached) yes

checking whether the gcc linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin15.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking whether stripping libraries is possible... yes

checking if libtool supports shared libraries... yes

checking whether to build shared libraries... yes

checking whether to build static libraries... yes

checking how to run the C++ preprocessor... g++ -E

checking for ld used by g++... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking for g++ option to produce PIC... -fno-common -DPIC

checking if g++ PIC flag -fno-common -DPIC works... yes

checking if g++ static flag -static works... no

checking if g++ supports -c -o file.o... yes

checking if g++ supports -c -o file.o... (cached) yes

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin15.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking for ANSI C header files... (cached) yes

checking fcntl.h usability... yes

checking fcntl.h presence... yes

checking for fcntl.h... yes

checking for inttypes.h... (cached) yes

checking limits.h usability... yes

checking limits.h presence... yes

checking for limits.h... yes

checking for stdlib.h... (cached) yes

checking for unistd.h... (cached) yes

checking for working memcmp... yes

checking for working strtod... yes

checking for ftruncate... yes

checking for memset... yes

checking for mkdir... yes

checking for strchr... yes

checking for strerror... yes

checking for strtol... yes

checking google/protobuf/stubs/common.h usability... no

checking google/protobuf/stubs/common.h presence... no

checking for google/protobuf/stubs/common.h... no

configure: error:

ERROR: protobuf headers are required.

You must either install protobuf from google,

or if you have it installed in a custom location

you must add '-Iincludedir' to CXXFLAGS

and '-Llibdir' to LDFLAGS.

If you did not specify a prefix when installing

protobuf, try

'./configure CXXFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib'

In some 64-bit environments, try LDFLAGS=-L/usr/local/lib64.

按照terminal的提示继续输入命令

./configure CXXFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib

checking build system type... x86_64-apple-darwin15.0.0

checking host system type... x86_64-apple-darwin15.0.0

checking target system type... x86_64-apple-darwin15.0.0

checking for a BSD-compatible install... /usr/bin/install -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... ./install-sh -c -d

checking for gawk... no

checking for mawk... no

checking for nawk... no

checking for awk... awk

checking whether make sets $(MAKE)... yes

checking whether make supports nested variables... yes

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking whether gcc understands -c and -o together... yes

checking for style of include used by make... GNU

checking dependency style of gcc... gcc3

checking for g++... g++

checking whether we are using the GNU C++ compiler... yes

checking whether g++ accepts -g... yes

checking dependency style of g++... gcc3

checking C++ compiler flags...... use user-supplied: -I/usr/local/include

checking how to print strings... printf

checking for a sed that does not truncate output... /usr/bin/sed

checking for grep that handles long lines and -e... /usr/bin/grep

checking for egrep... /usr/bin/grep -E

checking for fgrep... /usr/bin/grep -F

checking for ld used by gcc... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm

checking the name lister (/usr/bin/nm) interface... BSD nm

checking whether ln -s works... yes

checking the maximum length of command line arguments... 196608

checking how to convert x86_64-apple-darwin15.0.0 file names to x86_64-apple-darwin15.0.0 format... func_convert_file_noop

checking how to convert x86_64-apple-darwin15.0.0 file names to toolchain format... func_convert_file_noop

checking for /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld option to reload object files... -r

checking for objdump... no

checking how to recognize dependent libraries... pass_all

checking for dlltool... no

checking how to associate runtime and link libraries... printf %s\n

checking for ar... ar

checking for archiver @FILE support... no

checking for strip... strip

checking for ranlib... ranlib

checking command to parse /usr/bin/nm output from gcc object... ok

checking for sysroot... no

checking for a working dd... /bin/dd

checking how to truncate binary pipes... /bin/dd bs=4096 count=1

checking for mt... no

checking if : is a manifest tool... no

checking for dsymutil... dsymutil

checking for nmedit... nmedit

checking for lipo... lipo

checking for otool... otool

checking for otool64... no

checking for -single_module linker flag... yes

checking for -exported_symbols_list linker flag... yes

checking for -force_load linker flag... yes

checking how to run the C preprocessor... gcc -E

checking for ANSI C header files... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking for dlfcn.h... yes

checking for objdir... .libs

checking if gcc supports -fno-rtti -fno-exceptions... yes

checking for gcc option to produce PIC... -fno-common -DPIC

checking if gcc PIC flag -fno-common -DPIC works... yes

checking if gcc static flag -static works... no

checking if gcc supports -c -o file.o... yes

checking if gcc supports -c -o file.o... (cached) yes

checking whether the gcc linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin15.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking whether stripping libraries is possible... yes

checking if libtool supports shared libraries... yes

checking whether to build shared libraries... yes

checking whether to build static libraries... yes

checking how to run the C++ preprocessor... g++ -E

checking for ld used by g++... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking for g++ option to produce PIC... -fno-common -DPIC

checking if g++ PIC flag -fno-common -DPIC works... yes

checking if g++ static flag -static works... no

checking if g++ supports -c -o file.o... yes

checking if g++ supports -c -o file.o... (cached) yes

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin15.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking for ANSI C header files... (cached) yes

checking fcntl.h usability... yes

checking fcntl.h presence... yes

checking for fcntl.h... yes

checking for inttypes.h... (cached) yes

checking limits.h usability... yes

checking limits.h presence... yes

checking for limits.h... yes

checking for stdlib.h... (cached) yes

checking for unistd.h... (cached) yes

checking for working memcmp... yes

checking for working strtod... yes

checking for ftruncate... yes

checking for memset... yes

checking for mkdir... yes

checking for strchr... yes

checking for strerror... yes

checking for strtol... yes

checking google/protobuf/stubs/common.h usability... yes

checking google/protobuf/stubs/common.h presence... no

configure: WARNING: google/protobuf/stubs/common.h: accepted by the compiler, rejected by the preprocessor!

configure: WARNING: google/protobuf/stubs/common.h: proceeding with the compiler's result

checking for google/protobuf/stubs/common.h... yes

checking that generated files are newer than configure... done

configure: creating ./config.status

config.status: creating Makefile

config.status: creating src/compiler/Makefile

config.status: creating config.h

config.status: executing depfiles commands

config.status: executing libtool commands

make

/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-recursive

Making all in src/compiler

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.cc

mv -f .deps/main.Tpo .deps/main.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_enum_field.o -MD -MP -MF .deps/objc_enum_field.Tpo -c -o objc_enum_field.o objc_enum_field.cc

mv -f .deps/objc_enum_field.Tpo .deps/objc_enum_field.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_file.o -MD -MP -MF .deps/objc_file.Tpo -c -o objc_file.o objc_file.cc

mv -f .deps/objc_file.Tpo .deps/objc_file.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_message_field.o -MD -MP -MF .deps/objc_message_field.Tpo -c -o objc_message_field.o objc_message_field.cc

mv -f .deps/objc_message_field.Tpo .deps/objc_message_field.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_enum.o -MD -MP -MF .deps/objc_enum.Tpo -c -o objc_enum.o objc_enum.cc

mv -f .deps/objc_enum.Tpo .deps/objc_enum.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_generator.o -MD -MP -MF .deps/objc_generator.Tpo -c -o objc_generator.o objc_generator.cc

mv -f .deps/objc_generator.Tpo .deps/objc_generator.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_primitive_field.o -MD -MP -MF .deps/objc_primitive_field.Tpo -c -o objc_primitive_field.o objc_primitive_field.cc

mv -f .deps/objc_primitive_field.Tpo .deps/objc_primitive_field.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_extension.o -MD -MP -MF .deps/objc_extension.Tpo -c -o objc_extension.o objc_extension.cc

mv -f .deps/objc_extension.Tpo .deps/objc_extension.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_helpers.o -MD -MP -MF .deps/objc_helpers.Tpo -c -o objc_helpers.o objc_helpers.cc

mv -f .deps/objc_helpers.Tpo .deps/objc_helpers.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_field.o -MD -MP -MF .deps/objc_field.Tpo -c -o objc_field.o objc_field.cc

mv -f .deps/objc_field.Tpo .deps/objc_field.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objc_message.o -MD -MP -MF .deps/objc_message.Tpo -c -o objc_message.o objc_message.cc

mv -f .deps/objc_message.Tpo .deps/objc_message.Po

g++ -DHAVE_CONFIG_H -I. -I../..     -I/usr/local/include -MT objectivec-descriptor.pb.o -MD -MP -MF .deps/objectivec-descriptor.pb.Tpo -c -o objectivec-descriptor.pb.o `test -f 'google/protobuf/objectivec-descriptor.pb.cc' || echo './'`google/protobuf/objectivec-descriptor.pb.cc

mv -f .deps/objectivec-descriptor.pb.Tpo .deps/objectivec-descriptor.pb.Po

/bin/sh ../../libtool  --tag=CXX   --mode=link g++  -I/usr/local/include -lprotobuf -lprotoc -L/usr/local/lib -o protoc-gen-objc main.o objc_enum_field.o objc_file.o objc_message_field.o objc_enum.o objc_generator.o objc_primitive_field.o objc_extension.o objc_helpers.o objc_field.o objc_message.o objectivec-descriptor.pb.o

libtool: link: g++ -I/usr/local/include -o protoc-gen-objc main.o objc_enum_field.o objc_file.o objc_message_field.o objc_enum.o objc_generator.o objc_primitive_field.o objc_extension.o objc_helpers.o objc_field.o objc_message.o objectivec-descriptor.pb.o -Wl,-bind_at_load  -lprotobuf -lprotoc -L/usr/local/lib

make[2]: Nothing to be done for `all-am’.

make install

Making install in src/compiler

../.././install-sh -c -d '/usr/local/bin'

/bin/sh ../../libtool   --mode=install /usr/bin/install -c protoc-gen-objc '/usr/local/bin'

libtool: install: /usr/bin/install -c protoc-gen-objc /usr/local/bin/protoc-gen-objc

make[2]: Nothing to be done for `install-data-am'.

make[2]: Nothing to be done for `install-exec-am'.

make[2]: Nothing to be done for `install-data-am’.

创建proto文件

先在桌面创建一个文件夹,文件夹更名为ProtoBuf

cd ~/Desktop/ProtoBuf

touch person.proto

vi person.proto

proto的文件内容示例:

package web.platform;

message login_account_request

{

required bytes account = 1;

optional bytes passwd = 2;

}

message login_account_response

{

required int32 ec = 1;

optional bytes token = 2;

}

然后保存退出(按esc,输入:wq)

这样就在ProtoBuf的文件夹下面生成了proto文件,MAC默认没有可以打开这个文本文件的,所以选择TextEdit.app进行打开,你可以看到文件内容

注意:proto的内容格式一定要正确,可以将自己创建出来的文本格式和示例的进行对比,package有没有拼写错误,需要分号的地方是否有分号,包括大括号的格式。如果内容格式有问题,可能会导致后面无法生成正确的OC文件

生成OC文件

cd ~/Desktop/ProtoBuf

protoc --plugin=/usr/local/bin/protoc-gen-objc person.proto --objc_out="./"

这样,就在ProtoBuf的文件夹下面生成了OC文件

工程中Protobuf的应用

做了那么多铺垫,说了那么多废话,我们的核心部分终于来了

首先新建一个工程(假设工程名为TestProtoc),并且用CocoaPod在工程中配置ProtocolBuffer

cd~/Desktop/TestProtoc

pod init

打开Podfile文件

输入

pod "ProtocolBuffers", "~> 1.9.7”

关闭Podfile继续在terminal输入

pod install

然后终于可以不理terminal了,我们进入工程做事

先把生成的OC文件导入到工程中,我们以get和post两种网络数据方式进行示例

在ViewController.m文件中导入以下文件

#import <ProtocolBuffers/ProtocolBuffers.h>

#import "Web_test.pb.h"

Get方式

- (void)protoGet

{

NSData *raw_data = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"此处填写url"]];

login_account_response *response = [[login_account_response alloc]init];

response = [login_account_response parseFromData:raw_data];

NSLog(@"=====%@",response);

NSLog(@"----- %@", [[NSString alloc]initWithData:response.token encoding:NSUTF8StringEncoding]);

}

Post方式

- (void)protoPost

{

NSURL *url = [NSURL URLWithString:@"此处填写url"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

request.timeoutInterval = 0.5;

request.HTTPMethod = @"POST";

// 设置请求体

login_account_requestBuilder *builder = [login_account_request builder];

NSString *accountStr = [NSString stringWithFormat:@"hello"];

NSString *passwdStr = [NSString stringWithFormat:@"123"];

builder.account = [accountStr dataUsingEncoding:NSUTF8StringEncoding];

builder.passwd = [passwdStr dataUsingEncoding:NSUTF8StringEncoding];

login_account_request *req = [builder build];

NSLog(@"%@",[req data]);

request.HTTPBody = [req data];

NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

if (error)

{

NSLog(@"error = %@",error);

}

else

{

NSLog(@"------ data = %@",data);

NSLog(@"success");

// 返回的数据

NSString *result = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];

NSLog(@"%@",result);

}

}];

[task resume];

}

如果服务器里面写好了数据,就可以进行数据测试了

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